著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Sugiyama Kazuo,"MITSUBISHI AND N. Y. K., 1870-1914: Business Strategy in the Japanese Shipping Industry",Japanese Yearbook on Business History,0910-2027,経営史学会,1986,2,,176-178,https://cir.nii.ac.jp/crid/1390282680338683136,https://doi.org/10.5029/jrbh1984.2.176